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NiLuJe · 12-08-2019, 01:41 PM

There are very few commonalities, and they rarely make sense ^^.

Going via sysfs *should* behave like an ioctl on *current* FW versions, but it was possibly extra broken for quite a while during the 32bpp migration (early 4.x until basically 4.9). Take that with a grain of salt, I haven't been testing sysfs *writes* in quite a while.
Reading it appears to be sane, though.

Can't ask the kernel to rotate the touch coordinates for us, AFAICT (and, it is, in fact, "broken" (as, in, rotated) on purpose in the kernel driver for... reasons).

12-08-2019, 01:41 PM	#710
NiLuJe BLAM! Posts: 13,506 Karma: 26047202 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	There are very few commonalities, and they rarely make sense ^^. Going via sysfs should behave like an ioctl on current FW versions, but it was possibly extra broken for quite a while during the 32bpp migration (early 4.x until basically 4.9). Take that with a grain of salt, I haven't been testing sysfs writes in quite a while. Reading it appears to be sane, though. Can't ask the kernel to rotate the touch coordinates for us, AFAICT (and, it is, in fact, "broken" (as, in, rotated) on purpose in the kernel driver for... reasons). Last edited by NiLuJe; 12-08-2019 at 03:00 PM.